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植物对虫害的系统获得性抗性及抗虫与抗病信号途径间的相互作用
引用本文:何伟,李红玉,段建功,李欣.植物对虫害的系统获得性抗性及抗虫与抗病信号途径间的相互作用[J].植物保护学报,2005,32(4):425-430.
作者姓名:何伟  李红玉  段建功  李欣
作者单位:兰州大学生命科学学院,兰州,730000
摘    要:受病原体感染后,植物会获得一种持久广泛的抗性,称为系统获得性抗性,受到昆虫侵害时也会获得类似的系统获得性抗性.植物系统抗虫与抗病信号分子不同,前者是茉莉酸(JA)、甲基茉莉酸(Me-JA)或系统素,而后者是水杨酸(SA).SA介导的系统抗病信号途径与JA等介导的系统抗虫信号途径并非完全独立,而是存在所谓的"交叉对话",但"交叉对话"结果是相互促进还是抑制仍不清楚.植物系统抗性信号及其互作研究无疑会完善植物保护策略.

关 键 词:虫害  系统获得性抗性  水杨酸  茉莉酸  昆植互作
收稿时间:2004-05-26
修稿时间:2004年5月26日

Plant systemic acquired resistance to insect and a cross-talk between pathogen and insect resistance signal molecules
HE Wei,LI Hong-yu,DUAN Jian-gong and LI Xin.Plant systemic acquired resistance to insect and a cross-talk between pathogen and insect resistance signal molecules[J].Acta Phytophylacica Sinica,2005,32(4):425-430.
Authors:HE Wei  LI Hong-yu  DUAN Jian-gong and LI Xin
Institution:School of Life Sciences,Lanzhou University, Lanzhou 730000, China
Abstract:After pathogen infection,plant will acquire a long lasting broad-spectrum resistance,known as systemic acquired resistance (SAR).Plant can also acquire a similar SAR after insect attack.The sig- nal molecules of these two kinds of SAR are different:Of pathogen,it is salicylic acid (SA);And of in- sect,it is jasmonic acid (JA),methyl-jasmonic acid (Me-JA) or systemin.SAR signal transduction pathways mediated by JA,Me-JA or systermin is not thoroughly independent of by SA,but has a cross- talk between them,and whether the influence of their cross-talk on each other is promotion or reduction is still unknown.But it is undoubted that research on this subject will contribute to the foundation of plant protection strategies.
Keywords:Insect pest  systemic acquired resistance  salicylic acid  jasmonic acid  insect-plant interaction
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